Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:15

From 24.4 to 24.5 From 31.1 to 31.2

From version 24.5

edited by Admin
on 2025/02/24 12:22

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To version 31.1

edited by Admin
on 2025/02/24 13:52

Change comment: Загрузить новое вложение 1740405145695-704.png

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@@ -421,50 +421,36 @@
  The device supports three algorithms to control battery discharging:
--* load is always connected;
--* load is connected when there is no signal “Charger connected”;
--* load is connected when there is signal “Discharge request”.
++* Always on – load is always connected;
++* On charger disconnected – load is connected when there is no signal “Charger connected”;
++* On discharge request – load is connected when there is signal “Discharge request”.
--When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
++When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
--* Undervoltage;
--* Overvoltage (optional);
--* Overcurrent;
--* High temperature (DCH);
--* Low temperature (DCH) (optional);
--* HYG offline (optional);
--* Combilift offline (optional);
--* Spirit offline (optional);
--* Spirit charger error (optional);
--* Short circuit (optional);
--* High contactor temperature (optional);
--* DCH contactor cycles error;
--* Critical error
++* Service reset
++* Power down request
++* Inhibit discharging
  the discharging contactor opens.
--If the algorithm "**On Charger disconnected**" is selected, the control is performed as follows:
++If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
--* if there is no signal “Charger connected”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
--* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
++* if there is no signal “Charger connected”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
++* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
--When the "**On Discharge request**" algorithm selected, the control is performed as follows:
++When the "**On discharge request**" algorithm selected, the control is performed as follows:
--* if there is signal “Discharge request”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
--* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
++* if there is signal “Discharge request”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
++* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
  (% class="box infomessage" %)
  (((
--Note: in case of errors in the system operation, the opening of the **discharging **contactor is performed either immediately or with a delay T,,off,, (depends on the settings described below).
++**Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
  )))
--The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
--
--When the power down request occurs, the discharging contactor opens after delay T,,off,,. Reclosing the discharging contactor is performed if the power down request is removed.
--
  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
--[[image:1733746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
++[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]]
  In this section:
@@ -473,28 +473,51 @@
  ** Always on – load is always connected;
  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
  ** On discharge request – load is connected when there is signal “Discharge request”;
--* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
--* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
++* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
++* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>path:#HPrecharge]]);
++* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
  * Custom delay: <error> – specific error delay, millisecond;
  * Switch off the discharging contactor on errors without delay – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”.
--* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
--* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
--* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set.
  === Charge/Discharge ===
  The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
--The charging/discharging contactor combines algorithms of charging and discharging contactor. It behaves as a charging contactor when «Charge request» or «Charger connected» are set, otherwise – as a discharging contactor.
++Charge/Discharge contactor has three algorithms of operation:
++* Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
++* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
++* Independent (on Charge request or Discharge request) - Charge/Discharge contactor is based on its own controller that listen to Charge and Discharge requests and closes if one of these signals occurs.
++
++TBA
++
++(% class="box infomessage" %)
++(((
++**Note: **when errors occur in the system, the **Charge/Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
++)))
++
  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
--[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
++[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
++In this section:
++
  * Enable – a flag to enable the charge/discharge controller.
++* Algorithm:
++** Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
++** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
++** Independent (on Charge request or Discharge request);
++* Delay before starting charging or discharging, millisecond;
++* Delay before stopping charging or discharging, millisecond;
++* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
++* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
++* Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes;
++* Errors 1, 2 which affect the contactor only if battery CHARGING is detected – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND;
++* Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND;
++* Switch off the charging/discharging contactor on errors without delay – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”.
  === Discharge (AUX) ===
@@ -510,8 +510,8 @@
  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
--[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
++[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
  In this section:
  * Enable – a flag to activate the auxiliary discharge control;
@@ -518,37 +518,46 @@
  * Switch off the discharging (AUX) contactor if the SOC is too low;
  * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
  * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
++* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
++* Minimum cell voltage, V;
++* Maximum cell voltage, V;
  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
--* Minimum voltage – minimum battery voltage, V;
--* Maximum voltage – maximum battery voltage, V;
--* Switch off the discharging (AUX) contactor on errors – the auxiliary (AUX) discharging contactor opens if the following errors occur: Undervoltage, Overcurrent, High temperature (DCH), Short circuit, Critical error.
++* Minimum battery voltage, V;
++* Maximum battery voltage, V;
++* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
--===   ===
--
  === Cell balancing ===
--Balancing makes the voltage of all cells be equal to the minimum cell voltage.
++Balancing makes the voltage of all cells equal to the minimum cell voltage.
  The following balancing rules are supported:
--* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
++* when the battery is charging (current I > 0) and time after until the battery is relaxed;
  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
  * always (regardless of battery state).
--A balancing resistor is connected to the cell if:
++A balancing resistor is connected to the cell if the following conditions are simultaneously met:
--* the voltage on the cell is higher than the starting voltage of the balancing;
--* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
++* the voltage on the cell is higher than the balancing start voltage;
++* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
++A balancing resistor is disconnected from the cell if any of the following conditions are met:
++
++* the voltage on the cell is less than the balancing stop voltage;
++* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
++
  (% class="box infomessage" %)
  (((
--If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
++If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
  )))
--To change the cell balancing parameters, select the "Control → Cell balancing" section:
++The BMS Mini device can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
--[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
++BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
++To change the cell balancing parameters, select the "Control → Cell balancing" section:
++
++[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
  In this section:
  * Enable – a flag to enable cell balancing;
@@ -556,11 +556,15 @@
  ** Balance on charge;
  ** Balance on charge or relaxed;
  ** Balance always;
--
--[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
--
++* Balancing condition:
++** Automatic – balancing will be performed automatically if needed conditions are met;
++** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
  * Minimum cell voltage to start balancing, V;
--* Balancing deviation, V.
++* Voltage deviation to start balancing;
++* Voltage deviation to stop balancing;
++* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
++* Maximum allowable temperature of the board, ºC;
++* Command to discharge all cells – a flag to force the balancing of all cells.
  === Power down ===
@@ -575,20 +575,20 @@
  To change the parameters of the power down control, select the "Control → Power down" section:
--[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
--
++[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
  In this section:
  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
--* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS.
++* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS;
++* Delay before setting the internal power down signal – a delay before turning off the device power when receiving the “Power down request” command, ms.
  === Heater ===
  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
--[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
++[[image:1740404973346-344.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
  In this section:
  * Enable – a flag to enable heater control;
@@ -596,7 +596,7 @@
  * Tolerant cell temperature, °C;
  * Delay before starting the heater, millisecond;
  * Delay before stopping the heater, millisecond;
--* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
++* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater;
  As a result of operating the heating algorithm, the “Heater” signal is generated.

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